TCB & PWCB CAVITY BARRIERS
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Technical datasheet TCB & PWCB Cavity Barriers Version 3.10 November 2022 TCB & PWCB CAVITY BARRIERS Fire Protection for timber/steel frame & masonry cavity walls ROCKWOOL TCB & PWCB cavity barriers are manufactured from non-combustible stone wool, encapsulated within a resilient polythene sleeve which eliminates the need for weather protection during installation. The sleeves are also colour-coded to differentiate between the two products, TCB’s being red and PWCB’s white. • Fire resistance up to 60 minutes (EI) Reduce acoustic flanking transmission Improves air leakage & heat loss Unaffected by building movement Suitable for vertical and horizontal applications Site durable & weather protected Preventing fire spreading through concealed voids is essential for improving safety and property protection. One of the best ways to achieve this is to correctly specify and install cavity barriers. For more information visit rockwool.com/uk

APPLICATIONS ROCKWOOL TCB & PWCB Cavity barriers can be used in both vertical and horizontal applications, providing an effective fire, acoustic and thermal barrier within external wall cavities and separating party walls. All ROCKWOOL Cavity barriers are 1200mm long and are designed to be compression fitted within the cavity (min 10mm15mm compression). The barriers do not rely on the polythene flanges to hold them in place in the event of a fire. It is essential that the correct cavity barrier size is specified to suit the as-built cavity width. TCB & PWCB cavity barriers are available in...

ROCKWOOL TCB & PWCB PERFORMANCE Fire performance The use of ROCKWOOL Cavity Barriers satisfies the requirements of: • Approved Document B (Domestic) B3 - Section 6: Concealed spaces (Cavities) • Approved Document B (Non-domestic) B3 - Section 9: Concealed spaces (Cavities) • Scottish Technical Handbook Section 2 - Fire Section 2.4: Cavities • NI Technical Booklet E - Section 3: Provision of cavity barriers. ROCKWOOL TCB & PWCB Cavity Barriers are tested and assessed to BS 476: Part 20:1987 to provide up to 60 minutes Integrity and 60 minutes insulation (Table 1 & 2) ROCKWOOL TCB Cavity...

ROCKWOOL TCB & PWCB PWCB cavity barrier - All ROCKWOOL PWCB’s are 200mm wide, and are specifically designed for use at party wall/external wall cavity junctions. PWCB’s also achieve the requirements for fire safety, acoustic flanking and thermal bypass in one single product. Thermal: party wall thermal bypass - PWCB meets the requirements for an effective party wall perimeter edge seal, by restricting air flow around the exposed edges of party wall cavities. Fire: acts as an effective cavity barrier - PWCB is non-combustible and exceeds minimum fire resistance requirements for cavity...

ROCKWOOL TCB & PWCB STANDARDS AND APPROVALS Certificate TCB & PWCB Cavity Barriers have been tested and assessed BS476: Part 20: 1987 and can achieve a fire resistance rating of up to 60 minutes (EI). TCB Cavity Barriers have been tested to BS EN 1366-4: 2006 +A1 2010 using the general principles of BS EN 1363-1:2012 achieving a fire resistance rating of up to 60 minutes (EI). TCB & PWCB Cavity Barriers are manufactured using non-combustible stone wool which is classified A1 in accordance with BS EN 13501-1: 2007 +A1 2009. TCB Cavity Barriers tested and assessed to BS476 Part 20 are third...

ROCKWOOL TCB & PWCB DISCLAIMERS ROCKWOOL Limited, its affiliates, its agents and employees and all persons acting on its or their behalf (collectively “ROCKWOOL”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Usage of the information remains under the sole responsibility of the purchaser and/or user. ROCKWOOL makes no warranty, representation or guarantee regarding the information contained in the data sheet, the suitability of the products for any particular purposes or the...